What does P1349 mean on a Ford?

P1349. Fuel Level Sensor B Circuit High Input. Applies to Dual-tank Ford trucks.

What causes P1349 on a Ford?

Failed secondary fuel level sensor Open sensor B circuit Stuck secondary float Corroded tank selector connections Cluster fault

How do I fix P1349 on a Ford?

Test both tank readings on a scanner Inspect the secondary sender and float Check selector switch and wiring Test sensor B resistance through its travel Replace the secondary sender if stuck high

Code

P1349

Fuel Level Sensor B Circuit High Input

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: Dual-tank Ford trucks
Related: P0463 Fuel Level Sensor Circuit High Input on OBD Codes List

Findings, check these first

Failed secondary fuel level sensor
Open sensor B circuit
Stuck secondary float
Corroded tank selector connections
Cluster fault

Standard procedure

Test both tank readings on a scanner
Inspect the secondary sender and float
Check selector switch and wiring
Test sensor B resistance through its travel
Replace the secondary sender if stuck high

Code lookup

Type a code above, or start from a symptom or a common code.

Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.

Sources and review

Review: checked against the recorded source material.

OBDII.pro: P1349 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1349: Fuel Level Sensor B Circuit High
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
P1349 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1349: Fuel Level Sensor ‘B’ Circuit High Input
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.

Last updated 2026-09-05.

Report a correction for P1349. Include your vehicle, the issue and a source if you have one.